Parts
At HK Parts, we offer a wide range of high-quality Heckler and Koch accessories and components for your favorite firearms. Whether you are upgrading a Heckler and Koch pistol or rifle, or building with parts kits, we have you covered. Explore top-rated components for VP9, USP, P30, MP5, MP5K, G36, HK416, and more. From triggers, barrels, and grips to magazines, stocks, and sights, find the parts you need to enhance performance, reliability, and function.
Popular upgrades include match triggers, threaded barrels, compensators, optic plates, and extended magazines. Rifle owners often add enhanced stocks, forearms, and ambidextrous controls.
MP5 and MP5K kits are top sellers, giving shooters authentic components for iconic builds. G36 and HK416 kits are also highly sought after by collectors and professionals alike.
HKP offers the world’s largest H&K-focused catalog, with better availability, faster fulfillment, and expert support compared to general retailers.
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HK VP9, VP9SK, VP40 Left Side Slide Release Lever
H&K Heckler & Koch
$19.95H&K HK VP9/VP9SK, VP40 Left Side Slide Release Lever - Black New HK VP series German left side slide release lever for slide. Compatible With: HK VP9, VP9L HK VP9SK HK VP9A1 F HK VP9A1 K HK VP40HKP-16787$19.95 -
HK Mark 23, SOCOM Firing Pin - Titanium
HKP HK Parts
$49.95Ultimate Firing Pin Mark 23, Socom - Titanium - Grade 6 A solid billet CNC offering at 40+% lighter than comparable steel firing pins. Our titanium firing pins travel faster in the slide, delivering a quicker lock time & enhancing accuracy. Titanium...HKP-17803$49.95 -
HK MP5K 9mm SEF Navy Style Trigger Housing - Push Pin
H&K Heckler & Koch
$159.95H&K MP5K 9mm SEF Navy Style Trigger Housing - Push Pin HK German factory SEF grip frame that has been cut to MP5K factory German specs. This style of housing is for push-pin firearms that do not require clipped and pinned housing...HKP-02463$159.95 -
HK MP5, G3, HK33, PTR, SP5 Night Sight Set
Meprolight
$109.00Meprolight HK MP5, G3, 33, PTR, SP5 Night Sight Set Meprolight produces a bright green night sight available for Heckler & Koch sub guns and rifles. These tritium night sight inserts are a no-brainer for a quicker, more accurate point-and-shoot...HKP-02564$109.00 -
HK SP5K, MP5K Cocking Tube Support Spring - Reverse Stretch
H&K Heckler & Koch
$6.95Heckler and Koch HK SP5K, MP5K Reverse Stretch Cocking Tube Support Spring A great spare to have on hand as this part can become worn and be lost. The cocking tube support spring applies pressure to the cocking tube detent to enable to the detent to lock...HKP-17873$6.95 -
HK45 Magazine with Extension - Enhanced - 15 Round
HKP HK Parts
$113.95HKP HK Parts 15 Round Enhanced Magazine for HK45 HK45 and HK45 tactical +5 enhanced magazine extension. Our enhanced magazine was made to emulate the same side and front grip section of the HK45 to add the appearance of an extended grip. Paired...HKP-21430-M$113.95 -
Out Of Stock
HK MP5, HK53, HK53, G3 Contract Housing - 3 Position S,U,O Pictogram - Clipped and Pinned - 9mm, 5.56 / .223, 7.62 / .308 - Like New
Other
$119.95HK MP5, HK93 HK53, G3 (9mm, 5.56/.223, 7.62/.308) 3 Position (S,U,O Pictogram) Contract Housing - Clipped & Pinned - Like New Upgrade your HK93 or HK53 with this S,U,O polymer lower housing, a Malaysian contract housing designed for SEF type trigger...HKP-20031$119.95 -
HK VP9, VP9SK, VP40 Elbow Spring, Drop Safety
H&K Heckler & Koch
$6.95H&K HK VP9/VP9SK, VP40 Drop Safety Elbow Spring Compatible With: HK VP9 HK VP9A1 F HK VP9A1 K HK VP9SK HK VP40HKP-16835$6.95 -
HK USPC, P2000 Magazine - .40 S&W - 10 Round - Flat Floorplate
H&K Heckler & Koch
$59.00H&K 10 Round HKP2000/USPC .40 S&W Flat Floorplate Magazine New HK German manufacture. Compatible With: HK USP Compact .40 S&W HK P2000 .40 S&WHKP-02377$59.00 -
HK416, MR556 Magazine Catch
H&K Heckler & Koch
$59.95Heckler and Koch Magazine Catch for HK416 and HK MR556 New HK German manufacture magazine catch for the HK 416 and MR556 family of firearms. Compatible With: HK416, MR556HKP-15458$59.95 -
HK416, MR556, MR762 Bolt Catch Plunger
H&K Heckler & Koch
$9.95Heckler and Koch HK MR556 and HK416 Bolt Catch Plunger Compatible With: HK416, MR556 HK MR762HKP-02655$9.95 -
HK33, HK53, HK93 Receiver Flat - Complete Weldment Set
HKP HK Parts
$229.95HK .223, 556, & 300 BLK Receiver Flat With Complete Weldment Set Combo Each flat and weldment set comes with 223/556/300BLK complete as a builders combo ready to assemble. Compatible With: HK93, HK33, & HK53 Style Builds 300...HKP-00006$229.95